.file {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: 0;
}

.pic {
  position: relative;
  width: 185px;
  height: 66px;
  line-height: 66px;
  text-align: center;
  font-weight: lighter;
  color: #4abf9c;
  background: #eee;
  box-sizing: border-box;
  overflow: hidden;
}

.pic img {
  display: block;
  width: 100%;
  height:100%;
}